[英]How to return response object for bad request from Angular service to component
API 返回以下響應類型 -
export class ResponseObject{
statusCode: Number;
statusMessage: string;
response: string;
}
服務 -
singIn(user: User): Observable<ResponseObject>{
return this._httpClient.post<ResponseObject>(`${this._svcURL}/users/signin`, user, this._httpOptions)
.pipe(catchError(this.handleError));
}
private handleError(errResponse: HttpErrorResponse){
if(errResponse.error instanceof ErrorEvent){
console.log("[Service] Client side error-",errResponse.error.message);
}
else{
console.log("[Service]", errResponse);
}
return throwError("Oops! There is an issue with service. We're working on it.");
}
零件 -
loginUser(signinForm: any): void{
let user: User = {
email: signinForm.email,
password: signinForm.password
};
console.log('[LOGIN-COMPONENT] User details ', user);
this._moovApiService.singIn(user)
.subscribe((response: ResponseObject) => this.responseObject = response,
err => {
console.log('[LOGIN-COMPONENT] ', err);
},
() => {
console.log('[LOGIN-COMPONENT] Response from service ', this.responseObject);
}
);
}
如果 API 返回成功(200、201),我可以獲取 ResponseObject 類型的值,但如果是錯誤請求(404、400),它不會返回任何 ResponseObject 值。 它最終出現在 handleError() 方法中。
我想獲得組件中所有狀態代碼的響應,然后對其進行處理。 我怎么能這樣做?
如果您希望所有 HTTP 狀態代碼都被視為數據而不是錯誤,您需要從您的handleError
返回一個 false Observable。 例子:
private handleError(errResponse: HttpErrorResponse){
return Observable.of(false);
}
我會將handleError()
public
並執行
this._moovApiService.singIn(user).subscribe(
(data) => this.response = data,
(err) => {
this._moovApiService.handleError(err)
this.response = // put any value you want here
},
//() => complete
)
在訂閱前捕獲錯誤。
loginUser(signinForm: any): void {
let user: User = {
email: signinForm.email,
password: signinForm.password
};
console.log('[LOGIN-COMPONENT] User details ', user);
this._moovApiService.singIn(user).pipe(catchError(err => {
console.log('[LOGIN-COMPONENT] ', err);
}))
.subscribe((response: ResponseObject) => {
this.responseObject = response;
console.log('[LOGIN-COMPONENT] Response from service ', this.responseObject);
});
}
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